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109167157 = 119924287
BaseRepresentation
bin1101000000111…
…00001000110101
321121102021012001
412200130020311
5210421322112
614455455301
72463622411
oct640341065
9247367161
10109167157
11566929a0
1230687531
1319803268
14106d9d41
1598b5c57
hex681c235

109167157 has 4 divisors (see below), whose sum is σ = 119091456. Its totient is φ = 99242860.

The previous prime is 109167143. The next prime is 109167173. The reversal of 109167157 is 751761901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-109167157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109167127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4962133 + ... + 4962154.

It is an arithmetic number, because the mean of its divisors is an integer number (29772864).

Almost surely, 2109167157 is an apocalyptic number.

It is an amenable number.

109167157 is a deficient number, since it is larger than the sum of its proper divisors (9924299).

109167157 is an equidigital number, since it uses as much as digits as its factorization.

109167157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9924298.

The product of its (nonzero) digits is 13230, while the sum is 37.

The square root of 109167157 is about 10448.3088105205. The cubic root of 109167157 is about 477.9296783860.

The spelling of 109167157 in words is "one hundred nine million, one hundred sixty-seven thousand, one hundred fifty-seven".

Divisors: 1 11 9924287 109167157